Cleaning Cloth That Can Be Joined To A Mop Base

ABSTRACT

The invention concerns a cloth equipped along one of its lengthwise edges with a protrusion, perpendicular or coplanar to the plane of the cleaning surf aces of said cloth; said protrusion being suitable for being joined to a mop base with a gripper mouth.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of Italian Patent ApplicationPD2012A000113, filed on Apr. 13, 2012, and PCT ApplicationPCT/IB2013/052799, filed on Apr. 8, 2013, both incorporated herein byreference.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT

Not Applicable.

FIELD OF THE INVENTION

This concerns a cleaning cloth, and in particular a cloth for cleaningfloors, that is suitable for being used together with a mop base.

DISCUSSION OF RELATED ART

Cloths for cleaning floors are well known, they are generally wet ordry, and are suitable for being used together with a mop base.

As is well known, said mops are effectively retained by their respectivebases during the cleaning.

At the end of the above-mentioned cleaning operations, the mop isdisengaged from the base to be put in a container for dirty cloths to bewashed and eventually re-used when clean.

There are numerous methods for fixing said cloth to the base; the mostfrequently used method provides for the insertion of the protrudingparts of the mop base inside pockets that the cloth has on the ends onthe side opposite the cleaning side. The side to be used for fixing tothe mop base support is not an active side for cleaning since the clothsgenerally only use one side.

Naturally, when this side of the cloth for cleaning is dirty, it isclear that it needs changing so that cleaning operations can continue.

Even these modest operations for replacing the cloth (or washing, if theoperator has a wringer and cleaning liquid at hand) can slow downcleaning operations, forcing the operator to interrupt normal activitiesto detach the dirty cloth, putt it in a special container or bag fordirty cloths, and then take a fresh clean cloth, normally putting it onthe floor so that it can then be attached to the mop base.

Naturally these slowdowns could be reduced by being able to use bothcleaning surfaces of the cloth.

Currently there are bases that retain a cleaning cloth at the side alonga lengthwise edge and they allow you to use just a single surface.

However, this system up until now has encountered huge drawbacks to itsuse and distribution, because it is not always reliable in holding thecloth on the base and because of the frequency of the occasions neededfor the replacement phase, and the waste of time this involves.

Indeed, current bases for holding the cloth along the side do not havesufficient retaining force.

The lack of a secure hold sometimes leads to a loss of contact followinga crosswise movement, and very often following lengthwise movements ofthe cloth, which constitutes the retention edge.

This impedes many specific cleaning operations, like very close to theskirting board, where a series of alternating lengthwise movements arerequired along the lengthwise axis of the cloth whose profileconstitutes the retention edge of the cloth.

Therefore sudden stress on the cloth that leads to a lengthwise movementof the cloth itself with respect to the base usually leads to aninterruption of the solid connection with the mop base, forcing theoperator to stop, grab the cloth and lay it out on the floor in a waythat makes it possible to join it to the mop base again.

In fact it should be borne in mind that since cloths are normally softand flimsy, the connection between the cloth and the mop base, whichshould take place contemporaneously along the entire lengthwise edge ofthe cloth, requires that the latter be laid out on the floor withoutfolds or wrinkling, and with a lengthwise edge laid linearly in front ofthe retaining edge of the mop base.

In fact, every new attachment, whether to replace a dirty cloth with aclean one, or whether happening unexpectedly because of an accidentaldetachment, means the operator has to carry out a tiresome operationthat certainly wastes time.

This annoying operation is tolerated even less when it involves a wetand dirty cloth. In fact, it involves gripping the cloth with the handsand putting it down calmly and precisely on the floor.

This is to prevent the edge that will be retained on the base beingragged, something that would not allow the mop base to easily attach toit.

Other systems that make use of pockets, buttons, pins, etc., can alsomake sense during one of the phases, generally the connection phase, butare disadvantageous in the uncoupling phase, because very often theyrequire a manual intervention.

SUMMARY OF THE INVENTION Technical Problem

The aim of this invention is to make available a cloth that can overcomeone or more of the above-mentioned drawbacks.

Another object of this invention is to make available a cloth that caneasily be attached to a mop base of the gripper variety, in a reliablemanner, in particular without requiring any manual intervention.

A further object of this invention is to make available a cloth that caneasily be disengaged from the mop base of the gripper variety, withoutrequiring any manual intervention. An even further object of thisinvention is to make available a cloth that is relatively easy toarrange so that it can be securely connected to the mop base of thegripper variety.

Another object of this invention is to make available a cloth that canalso be used with lateral cleaning movements without undergoing anyloosening or detachment from the base it is attached to.

A further object of this invention is to make available a cloth that canbe held securely also in the face of abrupt lengthwise stresses withrespect to the mop base. An even further object of this invention is tomake available a cloth that can be retained securely and that is easy toconnect even after numerous washes, without the connecting partdeteriorating.

An even further object of this invention is to make available a cloththat can be wrung by a wringer even when attached to the mop base afterbeing rinsed. Another object of this invention is to make available acloth whose means of connection do not introduce parts that willdeteriorate even before the cloth itself

Technical Solution

One or more of these objectives is achieved by the cleaning cloth thatis the object of this invention in accordance with the attached claims.

Said cleaning cloth also achieves other aims that will be explained morefully in the description.

In particular, the object of the invention is a cleaning cloth includingat least one coupling element, suitable for being joined solidly to amop base, protruding along at least one lengthwise edge of said cloth,whose thickness and/or rigidity is greater than the material from whichthe cloth is made.

Advantageous Effects of Invention

Beneficially said protrusion is aimed in a normal direction to one orboth the active cleaning surfaces of the cloth, presenting itself as aswelling of the perimeter side or the edge to be used for theattachment.

Beneficially said protrusion is aimed in a direction that is coplanar tothe cloth, presenting itself ac; an overhanging coupling element withrespect to the structure of the cloth.

Beneficially, by using a rigid or semi-rigid material for said couplingelement you prevent the cloth from deteriorating in the part that comesinto contact with the mop base, thereby prolonging the life of thecloth.

Beneficially, said coupling element is configured like a blade, alsodivided into separate and eventually spaced elements, a plate joinedsolidly to the cloth along the lengthwise retention edge, and usefullysaid blade has an enlargement or increase in the end section along itsfree edge, opposite to the one joined to the cloth, where saidenlargement is capable of connecting to the gripper of a mop base.

Conveniently, said enlargement has a sawtooth-shaped sectionconveniently smoothed at the end of the overhang in order to facilitatethe insertion into the mouth of the gripper and ensure it is held insidethe mouth of the gripper safe from unwanted detachments.

Very conveniently the height of the tooth is comparable to the thicknessof the cloth, and in any event high enough to maintain a direction ofthe point of the arrow that is not directed downwards, namely towardsthe floor when the cloth is laying on the ground, i.e. laid out on thefloor.

Advantageously the cloth has both surfaces that are active and suitablefor cleaning, allowing, with two equal surfaces of the cloth, anincrease in the amount of surface that can be cleaned with aconsiderable saving of time.

Another advantage consists of the fact that both opposite and activesurfaces suited to cleaning are made of different materials and finishesto carry out a dedicated and diverse cleaning phase.

An even further advantage consists of the fact that in combination, orotherwise, with a cloth with a double active cleaning surface, theprotruding blade for being gripped and attached to the cloth has asymmetrical enlargement of the opposite free edge, thereby creating asymmetrical and mirrored configuration.

Another advantage comes from the fact that said enlarged edge has adouble sawtooth configuration, with the tooth directed towards eachside, conveniently smoothed at its overhanging end to facilitateinsertion into the mouth of the gripper. Advantageously said blade hasone or more recesses at the locators near the gripping mouth of the mopbase.

Another advantage of these recesses is that they form a locator andfacilitate the correct insertion of the blade into the mouth of thegripper.

Said recesses also provide the edges that in association with thelocators near the mouth of the gripper act as crosswise limit stops,limiting or preventing the lateral movements between the cloth and themop base, preventing detachment because of sliding.

Another advantage of these recesses is that they continue for a largepart of the crosswise breadth of the blade, with the blade thereforeremaining a single element, eventually only for the overlapping partjoining the cloth, but keeping the smooth and continuous edge fittedwith sufficient rigidity to be left on the floor by the operator,without particular care and laying practically already with said edgewith a fin lying flat with a linear arrangement, continuous and straightof its finned edge, so as to be already ready to be joined to the mouthof the gripper without further handling.

Eventually these recesses continue for the entire crosswise dimension ofthe blade, dividing the blade into two or more parts, allowing therecesses near the mouth of the mop base to arrive up to the edge of thecloth to be joined and avoiding having a blade as long as the lengthwiseextension of the cloth, sometimes too long to keep a single positionsuitable for quick and reliable gripping.

Beneficially the adoption of an edge protruding from the cleaning clothprovides the easy, but above all, complete wringing of the entire cloth,still attached to the base, said operation being necessary when it isrinsed to be re-used instead of being detached for its replacement witha new one.

A justification and explanation of the above-mentioned advantageouscharacteristics is set out below.

The stiffening of the edge to be used for the coupling comes mainly fromthe increase of the section of the protrusion and/or the material ofsaid protrusion compared to the cloth capable of joining to the mopbase.

Eventually this stiffening is increased also because of a partialadditional insertion, or overlapping, of the fin inside the cloth.

By placing said fin in the center line of the cloth, the position at thecrosswise axis of the moment of inertia is kept unchanged, and thereforethis facilitates the maintenance over the time of the lying flat of thecleaning cloth with a fin, also after numerous treatments, in particularhigh temperature washing and disinfection.

Thanks mainly to the above-mentioned characteristics, the stiffening ofthe end of the edge, the partial supplementary stiffening inside thecloth section, and the symmetrical arrangement of the rigid structure,it is possible to obtain a cleaning cloth that when thrown on the floorby the operator, even without any particular precautions, keeps the edgeto be used for the attachment in a continuous and smooth configurationto be engaged by the mouth of the mop base gripper.

The characteristics described above, facilitating the mop base joiningthe exposed overhanging blade, always obtain, because of the reasonsoutlined above, not only a cloth with a protruding edge ready forattachment with a flat layout and in a smooth and continuousconfiguration of this edge, but also slightly raised with respect to thefloor to facilitate even further the sliding beneath the lowerhalf-frame of the gripper mouth, and not directly against it.

Advantageously provisions are made for a retaining gripper mouth of amop base with an angled profile to be able to come close, scraping alongthe floor, underneath the coupling edge.

To render the grip more secure, there is a swelling at the end of thefree part of the blade; in fact it is clear that no matter how tightlythe fin is gripped (stiffened end part), the release stresses, togetherwith other unfavorable conditions to any retention, like detergents,soaps, etc., facilitate its being pulled out; therefore a sizeableenlargement of the end of the blade helps keep the cloth gripped and anydetachment would only be possible after overcoming the friction forcesdue to the gripping pressure, and also forcing the gripper to a partialopening, until at least the position necessary for the passage of theenlargement.

An improvement of this general enlargement is obtained with a profile ofthe edge to be used for the attachment having a sawtooth section; inaddition to the benefits described above, any pulling would be mostunlikely and therefore any detachment, if not activated by the operatorwho opens the gripper, practically impossible.

Cooperation between the steep front of the sawtooth with a similar andcomplementary front on the base, would make un undesired detachment ofthe cloth from the base irreversible; with this configuration also anylengthwise stress operated on the cloth would have no effect, in that itis directly countered on the steep front of the tooth and completelyabsorbed by the complementary configuration of the steep front in themouth of the mop base.

The height of this sawtooth would bring the free end, suitably smoothed,to a height, with respect to the support base of the cleaning cloth, toovercome the attachment edge of the mop base, thereby facilitating theoperation to overcome the initial part of the gripper of the mop base.

For an improved and more convenient management of the cloth, asymmetrical double sawtooth configuration arranged directly on the edgewas chosen, or opportunely spaced along the free overhanging edge of thefin that is an accessory of the cloth. This double sawtoothconfiguration facilitates the laying of the cloth on the floor and helpsthe operator in operations to change and replace the cloth when puttingthe cloth on the floor, since the operator is no longer forced to payattention as to the application side of the fin because this issymmetrical.

It is evident that all the methods described above for implementing therigid end parts of the side edge of the cloth, preferably implementedwith a blade or wing, allow the property of the cloth to remain thesame; in fact even if each configuration shows its own or improvedcharacteristic for joining to the respective cleaning cloth, it can beimplemented without any effects on the real capacity of the cleaningcloth, on the geometric configuration and on its ease of use, during andafter the cleaning operations. Always with an eye to improving themanagement and treatment of this finned cloth, it was found useful touse recesses on the protruding edge or this fin, in order to facilitatea precise attachment to the base in a crosswise direction, inassociation with special locators on the mop base, something that allowsthe operator to easily bring the base closer to the cleaning clothwithout too much trouble, because said recesses are slightly countersunkand allow for the auto-centering of the cloth in the gripper mouth ofthe mop base.

The shape of the recesses on the protruding edge or on the fin definesthe maximum depth the cloth can enter inside the mouth of the mop basegripper, since it comes up against special limit stops next to saidmouth of the gripper; this device helps the operator to join the base tothe cloth by limiting the insertion depth of the edge or the fin insidethe mouth of the gripper, so that it cannot go beyond this depth,something that would compromise the closing of the gripper itself, andalso wasting part of the active surface of the cleaning cloth that wouldnot be placed near the floor to be cleaned.

Another advantage provided by the presence and the configuration ofthese recesses of the above-mentioned blade lies in the fact that theyprevent excessive movements regarding the attachment that has occurredbetween the cloth and the base, avoiding the cloth becoming detachedfrom the base. As was said, the cloth can be detached not only bycrosswise pulling, but also following lengthwise movement. The lateralshoulders of the recesses come up against the side walls of thelocators, and by joining to them in an adaptive or auto-centering way,they prevent those movements that, if excessive, lead to an unwanteddetachment of the cleaning cloth from the base. Another possibleconfiguration of these recesses is where they continue open until theyreach the cloth. Advantageously the depth limit of these recesses is thelengthwise edge of the cleaning cloth that has not been stiffened.

Nevertheless, said fin can continue to be monolithic, preserving itscontinuity inside the profile of the lengthwise edge of the cleaningcloth, or these recesses could be total and through-passing, notmaintaining therefore the structural unity of the wing that would finditself configured as two or more elements joined solidly together on theedge of the cleaning cloth, slightly spaced out from each other.

The advantage of this latter configuration with the recesses, total andthrough-passing, lies in the fact that the fin is divided into two ormore parts, avoiding differentiated tensions because of the couplingbetween the fin and the cloth that could have the cloth take on aconfiguration that is not flat and not linear.

DESCRIPTION OF THE DRAWINGS

The technical characteristics of the invention, according to theabove-mentioned aims, can be clearly found in the content of the claimsbelow, and its benefits will become even more evident in the detaileddescription that follows, made with reference to the attached drawings,which represent a form that is purely exemplary and in no wayrestrictive, where:

FIG. 1 shows a normal cleaning cloth, with no devices for an easy andsecure attachment to a mop base.

FIG. 2 shows a normal cleaning cloth that shows the drawback thatprevents an easy lengthwise attachment to a mop base fitted with agripper.

FIG. 3 shows a normal cleaning cloth that shows another type of drawbackthat prevents an easy lengthwise attachment to a mop base fitted with agripper.

FIG. 4 shows a prospective view of a cleaning cloth in accordance withthe invention, with a coplanar protrusion that is perpendicular to theactive surface of the cleaning cloth.

FIG. 5 shows a crosswise section of the cloth of FIG. 4 with a coplanarprotrusion from the active surface of the cloth.

FIG. 6 shows the cloth of FIG. 5 where the attachment blade haspartially penetrated the cloth and eventually resting on the axis ofsymmetry of said cloth.

FIG. 7 shows crosswise section of an alternative realization of acleaning cloth according to the invention, with a protrusion that isperpendicular to the active surface of the cleaning cloth.

FIG. 8 shows the cloth of FIG. 5 with a fin with an enlargement at theend on the free edge.

FIG. 9 shows the cloth of FIG. 5 with a fin whose free edge isconfigured as a sawtooth.

FIG. 10 shows the cloth of FIG. 5 with a fin whose free edge isconfigured as a double saw tooth with a rounded off end.

FIG. 11 shows a prospective view of the cloth of FIG. 10.

FIG. 12 shows the cloth of FIG. 11 where the fin has crosswise recesses.

FIG. 13 shows the cloth of FIG. 12 where the crosswise recessescontinues up to the edge of the cloth.

FIG. 14 shows details of the cloth near the gripping mouth of a mopbase.

FIG. 15 shows details of the cloth held inside the gripping mouth of amop base.

FIG. 16 shows the collaboration between the recesses of the fin with thelocators near the gripping mouth of the mop base.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Best Mode

With reference to the drawings, the normal cleaning cloth, indicatedwith 1, does not have any devices for facilitating it being gripped bythe mouth of a gripper of a mop base, and it is rectangular in shape.

However, this cloth 1, especially when wet, and above all if flimsy,when it is left to fall on the floor by the operator, almost always theedge to be gripped is not flat and quite often it has fold 2,overlapping, or with a configuration of the edge that is not smooth andcontinuous, but with a recess 3.

A cloth on the floor that has either a fold 2 or a recess 3 makes anygripping operation difficult to carry out and practically impossible atthe first attempt, since it requires some manual adjustment.

For the reason set out above, these normal cleaning cloths should belaid down with care, arranged on the floor with a continuous layout anda linear profile of the perimeter edges.

Nevertheless such cloths of the prior art, which have no specificstiffening devices on the outer edge, are not very practical for beingjoined to a mop base.

In the mop base 4 however, which is the object of the invention, thereare specific devices for joining to the mop base.

In particular, the mop base 4, which is the object of the invention, hasa protrusion 12, or an enlargement or increase in section, on at leastone lengthwise edge that increases the firmness and/or the thickness.

This protrusion 12, which advantageously is perpendicular to one or boththe active surfaces of the cleaning cloth, realizes and attains many ofthe characteristic advantages mentioned above.

Another type of protrusion on the mop base that is the object of thisinvention comes out of the lengthwise edge in a direction that iscoplanar to the cleaning cloth, as an overhang, being configured as astiffened part or a fin 5, made of a material that is more solid andstiffer with respect to the cloth 4.

In this way it is possible to lay the cloth out on the floor withoutworrying, with a probable certainty that it will lay flat and with alinear profile, namely with a configuration that is suited to beingattached, without further handling, to a mouth of a gripper of a mopbase.

The fin 5, in order to highlight the characteristics set out above, canpartially continue inside the cloth for a partial piece 6, facilitatingboth the realization and conferral of greater rigidity due to theoverlapping of the thicknesses.

An improved arrangement of this fin 5 envisages that it is appliedsymmetrically, namely at an equal distance from the cloth surfaces.

In order to provide a secure hold inside the mouth of the gripper of themop base, said fin 5 is enlarged at the end 7.

A saw tooth profile 8 of said end enlargement has the advantage ofsliding easily inside the inclined profile of the mouth 13 of the mopbase 14 gripper, and also has the advantage at its steep front 9 ofbeing held better, above all in combination with a complementary profileof the gripper mouth 13 of the mop base 14.

A height of such a tooth, comparable to the thickness of the cloth 4, orsuch that the tip, opportunely rounded off, is directed upwards,facilitates the above-mentioned operation of overcoming the initial partof the mouth 13 of the gripper of the mop base 14.

An improved configuration of this end edge is obtained with asymmetrical double saw tooth profile 10, with an opportunity roundedend, attaining all the benefits of the saw tooth 8 for any side that islying on the floor; therefore relieving the operator of having to verifythe correct side before laying the cloth on the floor.

In order to ensure the precise installation of the cloth on the mopbase, one or more recesses are provided along the edge that has theprotrusion 12, or the fin 5, with respect to the free edge, where theserecesses in cooperation with special locators 15 near the mouth 13 ofthe gripper of the mop base 14, making a centered attachment possibleand at the correct depth of insertion into said mouth 13.

In fact, said recesses can have an inclined auto-centering inclinationand their depth limits, by hitting against the above-mentioned locators15, how far the edge with the protrusion 12 or the fin 5 inserts whenengaged inside the mop base 14.

Depending on the extension of these recesses, the edge with theprotrusion 12 or fin 5 can be configured as a single piece, but alsodivided into several distinct elements, without this invalidating thecharacteristics of a flat arrangement and with a continuous profile whenlaid on the floor.

Moreover, said teeth, and in particular the lateral shoulders 11 ofthese recesses, are very important in order to limit or impede thecrosswise sliding of the cloth 4 with respect to the base 14.

In fact, said lateral shoulders 11 of these recesses are next to theside walls 16 of special locators 15 near the mouth 13 of the gripper,cooperating with them to prevent the above-mentioned crosswisemovements.

It should be pointed out that the locators 15 on the mouth 13 of the mopbase 14 that prevent the crosswise shifts of the cloth 4, can also bethe same locators 15 that provide the correct centering of the cloth 4and eventually limiting the depth of the edge with the protrusion 12 orfin 5 that has to enter the mouth 13 in order to guarantee the correctattachment of the saw tooth end edge 8 or double saw tooth 10 of the fin5 with the complementary profile near the mouth 13 of the mop base 14.

Clearly, a profile of the cloth itself that would attain the sameeffects because of the same functions, should be included within theinventive context of this patent, especially when combined withtreatment that stiffens this edge so that it can join to any enlargementor shaping, as described, in the part of the free edge, and especiallyif fitted with one or more recesses to join to the respective locatorson the base for the pre-established purposes.

1. The cleaning cloth that can be joined to a mop base, including acoupling element solidly connected to said cloth, suitable for beingattached solidly to a mop base that protrudes along a lengthwise edge ofsaid cloth, wherein said coupling element has a greater thickness and/orrigidity compared to the material of which the cloth is made.
 2. Thecleaning cloth that can be joined to a mop base according to claim 1,wherein said coupling element protrudes in a direction that isperpendicular to the cleaning plane of the cloth along a retaininglengthwise side, configured as an edge with a protrusion.
 3. Thecleaning cloth that can be attached to a mop base according to claim 1,wherein said coupling element protrudes in a direction that is coplanarto the cleaning plane of the cloth along a lengthwise retaining side. 4.The cleaning cloth that can be joined to a mop base according to claim3, wherein said coupling element is configured as a flat blade solidlyconnected to the cloth along the lengthwise retaining side.
 5. Thecleaning cloth that can be joined to a mop base according to claim 4,wherein said blade has an enlargement or increase of its endcross-section along its free edge, opposite to the one connected solidlyto the cloth, with said enlargement being capable of joining to theretaining gripper mouth of a mop base.
 6. The cleaning cloth that can bejoined to a mop base according to claim 5, wherein said enlargement hasa sawtooth profile.
 7. The cleaning cloth that can be attached to a mopbase according to claim 6, wherein said sawtooth has a tooth heightsimilar to the thickness of the cloth.
 8. The cleaning cloth that can bejoined to a mop base according to claim 1, wherein the surfaces of bothsides of said cloth can be used for cleaning.
 9. The cleaning cloth thatcan be joined to a mop base according to claim 8, wherein both cleaningsurfaces of said cloth are made of a different material and finish inorder to carry out a specific and different cleaning stage.
 10. Thecleaning cloth that can be joined to a mop base according to claim 2,wherein said edge that has a protrusion, or at least a protrudinggripping and retaining blade joined to the cloth, has a symmetricalenlargement on the opposite free edge, taking on therefore a symmetricalconfiguration.
 11. The cleaning cloth that can be joined to a mop baseaccording to claim 10, wherein said edge with a protrusion or blade hasa sawtooth configuration towards each side, thereby configured as adouble sawtooth, with a rounded end.
 12. The cleaning cloth that can bejoined to a mop base according to claim 2, with said mop base having agripper mouth suitable for joining to said cloth and there being one ormore locators near the mouth, wherein said edge with a protrusion orsaid blade has one or more recesses at said locators.
 13. The cleaningcloth that can be joined to a mop base according to claim 12, whereinsaid recesses have lengthwise edges that together with the locators nearthe gripper mouth act as limit stops for the cloth inside the grippermouth on the mop base.
 14. The cleaning cloth that can be joined to amop base according to claim 12, wherein said recesses have crosswiseedges that together with the side walls of said locators near thegripper mouth act as crosswise limit stops for the cloth inside thegripper mouth on the mop base.
 15. The cleaning cloth that can be joinedto a mop base according to claim 12, wherein said recesses continuealong the entire dimension of said edge that has a protrusion or blade,dividing said edge with a protrusion or blade into two or more separateparts with a space between.
 16. The cleaning cloth that can be joined toa mop base according to claim 3, wherein said edge that has aprotrusion, or at least a protruding gripping and retaining blade joinedto the cloth, has a symmetrical enlargement on the opposite free edge,taking on therefore a symmetrical configuration.
 17. The cleaning cloththat can be joined to a mop base according to claim 16, wherein saidedge with a protrusion or blade has a sawtooth configuration towardseach side, thereby configured as a double sawtooth, with a rounded end.18. The cleaning cloth that can be joined to a mop base according toclaim 3, with said mop base having a gripper mouth suitable for joiningto said cloth and there being one or more locators near the mouth,wherein said edge with a protrusion or said blade has one or morerecesses at said locators.
 19. The cleaning cloth that can be joined toa mop base according to claim 18, wherein said recesses have lengthwiseedges that together with the locators near the gripper mouth act aslimit stops for the cloth inside the gripper mouth on the mop base. 20.The cleaning cloth that can be joined to a mop base according to claim18, wherein said recesses have crosswise edges that together with theside walls of said locators near the gripper mouth act as crosswiselimit stops for the cloth inside the gripper mouth on the mop base. 21.The cleaning cloth that can be joined to a mop base according to claim18, wherein said recesses continue along the entire dimension of saidedge that has a protrusion or blade, dividing said edge with aprotrusion or blade into two or more separate parts with a spacebetween.
 22. The cleaning cloth that can be joined to a mop baseaccording to claim 8, with said mop base having a gripper mouth suitablefor joining to said cloth and there being one or more locators near themouth, wherein said edge with a protrusion or said blade has one or morerecesses at said locators.
 23. The cleaning cloth that can be joined toa mop base according to claim 22, wherein said recesses have lengthwiseedges that together with the locators near the gripper mouth act aslimit stops for the cloth inside the gripper mouth on the mop base. 24.The cleaning cloth that can be joined to a mop base according to claim22, wherein said recesses have crosswise edges that together with theside walls of said locators near the gripper mouth act as crosswiselimit stops for the cloth inside the gripper mouth on the mop base. 25.The cleaning cloth that can be joined to a mop base according to claim22, wherein said recesses continue along the entire dimension of saidedge that has a protrusion or blade, dividing said edge with aprotrusion or blade into two or more separate parts with a spacebetween.